package com.adou.d3;

public class MemoryDemo {
    public static void main(String[] args) {
        int a = 20;
        System.out.println(a);

        int[] arr = new int[]{11,22,33};
        System.out.println(arr);
        System.out.println(arr[1]);

        arr[1] = 66;
        System.out.println(arr[1]);


    }
}
